Equalizing device



Patented Feb. 27, 1923.

wire STATES- m eg.-

EQUALIZIN G DEVICE.

Application filed December 5, 1921. Serial No. 520,133.

(FILED UNDER THE ACT OF MARCH 3, 1883, 22 STAT. L., 625.)

To all whom. it may concern Be it known that I, BRYAN P. JOYCE, a citizen of the United States, and a resident of Washington, District of Columbia, have invented an Improvement in Equalizing Devices, of which the following is a specification.

The invention described herein may be used by the Government, or any of its officers or employees in prosecution or work for the Government, or by any other person in the United States, without payment to me ot any royalty thereon.

The subject or" this invention is a gun carriage and the invention relates more specifically to an equalizing device whereby a split trail gun carriage may adjust itself to uneven ground.

The main object of the invention is to provide a gun carriage having, when the trail is lowered to firing position, a three point support, about one of which points the carriage may be oscillated.

Vith the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the novel arrangement and combination of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

One practical structure constructed in accordanre with the invention is illustrated in I the accompanying" drawing, wherein: V

Fig. l is a front elevation of the gun carriage;

Fig. 2 is a plan view of the same; and

Fig. 3 is an enlarged detailed sectional View taken on the line 33 of Fig. 2.

Referring to the drawings by numerals of reference; i

The carriage consists of a bottom carriage 10 formed at its forward portion with the housing 11 for the reception of the axle 12 upon the ends of-which are mounted the usual wheels 13.

To pivot-ally mount the carriage upon the axle, apertures 14 are provided in the front and rear plates of the axle housing and align with. an aperture 15 formed in the axle. A pin 16 is inserted in the alining apertures and pivotally connects the car-' riage and axle. In order to protect the pivot pin from dust or dirt, and hold the pin in place a door 1'7 is hinged as at 18 to the front plate of the axle housing and this door carriage 10 and thereby are limited in the extent of their spread.

From the foregoing it will be. when the gun carriage is in firing position there will be three points of support, namely, the ends or spades of the trails, and the pivot connection, so that the carriage will be free to swing into a horizontalposition though the ground may be uneven.

hat I claim is:

1. A gun mount, embodying a bottom carriage,a housing at the forward end of the carriage provided with alining apertures in its front and rear walls, an axle in the housing free to oscillate in a vertical plane, said axle provided with an aperture, a pin passing through the apertures in the housing and axle, a door secured to the housing for holding the pin in place, trail members pivoted to the carriage and side walls" on the carriage in the path of the trail members to limit the spread of the trail.

2. A gun mount, embodying a bottom carriage, a housing at the forward end of the bottom carriage provided with alining apertures in its front and rear walls, an axle in the housing free to oscillate in a vertical plane, said axle provided with an aperture, a pin passing through the apertures in the housing and axle, a door secured to the housing for holding the pin in place and separable t-rail members pivoted to the carriage.

BRYAN P. JOYCE.

seen that 

